| Many Americans find silence
uncomfortable during a buffet or a formal dinner. {{U}} (21) {{/U}}in the
States there is the {{U}} (22) {{/U}} practice of making "small talk" in
certain social situation. Small talk deals {{U}} (23) {{/U}} various
topics, superficially, simply for the sake of keeping a conversation
{{U}} (24) {{/U}}. The topics {{U}} (25) {{/U}} include the
weather, sports, college courses, clothing, food, etc. Small talk is
{{U}} (26) {{/U}} useful at social gathering when you meet someone for
the first time, or when polite conversation is expected but no serious
discussion {{U}} (27) {{/U}}. It is common but not necessarily expected that one should know {{U}} (28) {{/U}} in a group before engaging him or her in conversation. {{U}} (29) {{/U}}, at a party or {{U}} (30) {{/U}} informal social gatherings, a simple " A. rooms B. places C. hall D. house [简答题]正常肺下界范围？肺下界改变临床上常见于何种情况？
[多项选择]检察机关上下级之间的制约机制，可以从下面几个方面进一步完善（）。
A. 定期报告工作制度 B. 强化业务指导和监督 C. 要加强对下级院备案材料的审查 D. 建立预审制度 [单选题]>给水泵在运行中的振幅不允许超过0.05mm,是为了( )。
A.防止振动过大,引起给水压力降低 B.防止振动过大,引起基础松动 C.防止轴承外壳遭受破坏 D.防止泵轴弯曲或轴承油膜破坏造成轴瓦烧毁 [判断题]没有机械传动的断路器应使用合格的绝缘棒进行雨天操作应使用有防雨罩的绝缘棒并戴纱手套进行操作。( )
A.正确 B.错误 [单选题]牢固树立安全发展、科学发展理念，加强电力安全监管体系建设，逐步理顺电力行业跨区域监管体制，明确行业监管、区域监管与地方监管职责，鼓励有条件的地区先行先试。（）
A.正确 B.错误 C.略 D.略 E.略 F.略 我来回答: 提交
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